River and Dam Details
| i) | Pazhaiyar River | Running towards North to South direction Eastern boundary. |
| ii) | Ananthanar Channel | Running towards North to South direction Western boundary. |
| iii) | Krishnancoil Canal | This Canal is connectly Ananthanar Channel to Pazhaiyar River west to North direction and located Heart of the town |
DAM :
MUKKADAL DAM
THE MARTHANDA VARMA WATER WORKS
Water Supply :-
Nagercoil Marthanda Varma Water Supply Scheme year of Instruction 1945.
| Ist Improvement Scheme | 1946 | |
| IInd Improvement Scheme | 2002 | |
| Present Population | 2,60,315 | |
| Present Beneficiaries | ||
| Daily Supply | 24,00,000 liters | |
| Per capital Supply | 93 liters | |
| Number of Public Fountain | 986 | |
| No.of House Service connection | 48637 | |
| No.of Bore wells (with Power pump) | 867 Nos |
| A | NO OF OPEN WELLS | NIL | |
| B | NUMBER OF HAND PUMPS | NIL | |
| C | NUMBER OF PUBLIC FOUNTAINS | 986 Nos. | |
| D | NUMBER OF HOUSE SERVICE CONNECTIONS | 48637 Nos. | |
| E | OPEN WELL MOTOR FITTED & BORE WELL MOTOR FITTED | NIL 867 Nos. | |
| F | WATER SUPPLY MAIN DETAILS | ||
| Gravitation Line : Old Line | 16″X 24″ | ||
| New Line | 32″ | ||
| From Mukkudal to Krishnancoil | 12 KM | ||
| Filter House distance No.of Filter House | 3 Nos. (34 mld) | ||
| G | OVER HEAD TANKS | ||
| a. | Ground level Reservoir (Filter House) | 12.5 Lakhs | 1 No |
| b. | Asirvatham Nagar (O.H.T) | 7.00 lakhs | |
| c. | Filter House (O.H.T) | 12.00 lakhs | 1 No |
| d. | Christhu Nager (O.H.T) | 8.00 lakhs | 1 No |
| e. | Christhu Nager (O.H.T) | 8.00 lakhs | 1 No |
| f. | Thattanvilai Park (O.H.T) | 6.00 lakhs | 1 No |
| g. | Holy Cross Nager (O.H.T) | 7.00 lakhs | 1 No |
| h. | Kazhai Santhai (Saralur) (O.H.T) | 4.5 lakhs | 1 No |
| i. | Maravankudiyeruppu (O.H.T) | 8.00 lakhs | 1 No |
| j. | Anathaimadam (O.H.T) | 12.5 lakhs | 1 No |
| k. | Municipal Office (O.H.T) | 12.5 lakhs | 1 No |
| H | PUMPING MOTOR | ||
| 1. | At Filter House | 60 HP | 2 Nos |
| 75 HP | 2 Nos | ||
| 30 HP | 2 Nos | ||
| 60 HP | 1 Nos | ||
| 2. | Soorankudy | 20 HP | 2 Nos |
| 3. | Housing Board | 15 HP | 2 Nos |
| I | SUPPLY DETAILS | ||
| a. | Daily Town Supply | 240 Laks Litres | |
| J. | WAY SIDE VILLAGES | ||
| a. | Boothapandy | Daily Supply 9.60 lakhs | |
| b. | Thittuvilai | Daily Supply 9.60 lakhs | |
| c. | Esanthimangalam | Daily Supply 9.60 lakhs | |
| d. | Erachakulam | Daily Supply 9.60 lakhs | |
| e. | Thuvarenkadu | Daily Supply 9.60 lakhs | |
| f. | Putheri | Daily Supply 9.60 lakhs | |
| K. a. | Ground level Service Reservoir | Once in six days | |
| b. | Asirvatham Nager Tank | Once in six days | |
| c. | Filter House Tank | Once in six days | |
| d. | Christu Nager Tank | Once in six days | |
| e. | Christu Nager Tank | Once in six days | |
| f. | Thattanvilai Tank | Once in six days | |
| g. | Holy Cross Nager Tank | Once in six days | |
| h. | Kazhai Santhai Tank | Once in six days | |
| i | Maravankudiyeruppu | Once in six days | |
| j. | Anathaimadam Tank | Once in six days | |
| k. | Municipal Office Tank | Once in six days |
WATER SUPPLY POSITION
| Sl. No. | Present Population | Quantity of Water Supplied | Total Quantity of Water Supplied | Lpcd | Status of Water Supply | Frequency of Supply | |||
| From regular Schemes | From Min PP. | From Bore Wells | From Lory Supply | Good | |||||
| 1 | 2,60,315 | 21.00 | – | 3.00 | – | 24.00 | 93 | Good | Once in 5 days |